/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:25:06,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:25:06,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:25:06,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:25:06,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:25:06,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:25:06,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:25:06,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:25:06,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:25:06,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:25:06,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:25:06,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:25:06,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:25:06,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:25:06,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:25:06,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:25:06,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:25:06,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:25:06,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:25:06,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:25:06,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:25:06,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:25:06,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:25:06,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:25:06,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:25:06,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:25:06,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:25:06,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:25:06,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:25:06,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:25:06,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:25:06,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:25:06,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:25:06,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:25:06,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:25:06,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:25:06,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:25:06,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:25:06,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:25:06,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:25:06,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:25:06,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-04-17 22:25:06,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:25:06,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:25:06,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:25:06,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:25:06,549 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:25:06,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:25:06,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:25:06,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:25:06,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:25:06,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:25:06,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:25:06,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:25:06,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:25:06,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:25:06,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:25:06,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:25:06,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:25:06,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:25:06,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:25:06,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:25:06,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:25:06,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:25:06,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:25:06,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:25:06,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:25:06,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:25:06,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:25:06,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:25:06,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:25:06,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:25:06,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:25:06,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:25:06,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:25:06,861 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:25:06,862 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-04-17 22:25:06,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed549b64/15b1684d0ec941589e8ae48d8c3b5102/FLAGde2828e41 [2020-04-17 22:25:07,527 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:25:07,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2020-04-17 22:25:07,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed549b64/15b1684d0ec941589e8ae48d8c3b5102/FLAGde2828e41 [2020-04-17 22:25:07,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ed549b64/15b1684d0ec941589e8ae48d8c3b5102 [2020-04-17 22:25:07,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:25:07,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:25:07,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:07,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:25:07,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:25:07,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:07" (1/1) ... [2020-04-17 22:25:07,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f25ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:07, skipping insertion in model container [2020-04-17 22:25:07,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:25:07" (1/1) ... [2020-04-17 22:25:07,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:25:07,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:25:08,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:08,468 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:25:08,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:25:08,610 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:25:08,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08 WrapperNode [2020-04-17 22:25:08,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:25:08,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:08,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:25:08,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:25:08,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:25:08,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:25:08,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:25:08,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:25:08,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... [2020-04-17 22:25:08,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:25:08,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:25:08,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:25:08,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:25:08,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:25:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:25:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:25:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:25:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:25:08,758 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:25:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:25:08,759 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:25:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:25:08,759 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:25:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:25:08,760 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-17 22:25:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-17 22:25:08,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:25:08,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:25:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:25:08,762 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:25:09,233 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:25:09,234 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:25:09,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:09 BoogieIcfgContainer [2020-04-17 22:25:09,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:25:09,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:25:09,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:25:09,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:25:09,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:25:07" (1/3) ... [2020-04-17 22:25:09,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a58c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:09, skipping insertion in model container [2020-04-17 22:25:09,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:25:08" (2/3) ... [2020-04-17 22:25:09,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a58c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:25:09, skipping insertion in model container [2020-04-17 22:25:09,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:25:09" (3/3) ... [2020-04-17 22:25:09,266 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2020-04-17 22:25:09,280 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:25:09,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:25:09,290 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:25:09,291 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:25:09,332 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,333 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,333 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,334 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,334 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,334 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,335 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,335 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,337 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,337 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,338 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,338 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,340 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,340 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,340 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,341 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,342 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,343 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,343 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,343 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,344 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,344 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,344 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,346 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,351 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,351 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,351 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,352 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,358 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,358 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,362 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,362 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,362 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,370 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,370 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,370 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,371 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:25:09,390 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 22:25:09,414 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:25:09,414 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:25:09,415 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:25:09,415 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:25:09,415 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:25:09,415 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:25:09,415 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:25:09,415 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:25:09,431 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-17 22:25:09,433 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-17 22:25:09,481 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-17 22:25:09,481 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:09,490 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-17 22:25:09,494 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-17 22:25:09,544 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-17 22:25:09,544 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:25:09,545 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-17 22:25:09,550 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-17 22:25:09,551 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:25:11,360 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-17 22:25:11,423 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-17 22:25:11,424 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-17 22:25:11,427 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-17 22:25:11,499 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-17 22:25:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-17 22:25:11,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 22:25:11,516 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:11,517 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:11,518 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:11,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:11,523 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-17 22:25:11,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:11,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803451480] [2020-04-17 22:25:11,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:11,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803451480] [2020-04-17 22:25:11,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:11,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:11,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077139735] [2020-04-17 22:25:11,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-17 22:25:11,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:11,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-17 22:25:11,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 22:25:11,730 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-17 22:25:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:11,777 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-17 22:25:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-17 22:25:11,779 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-17 22:25:11,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:11,828 INFO L225 Difference]: With dead ends: 850 [2020-04-17 22:25:11,828 INFO L226 Difference]: Without dead ends: 706 [2020-04-17 22:25:11,829 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-17 22:25:11,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-17 22:25:11,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-17 22:25:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-17 22:25:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-17 22:25:11,965 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-17 22:25:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:11,967 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-17 22:25:11,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-17 22:25:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-17 22:25:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:25:11,970 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:11,971 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:11,973 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:11,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-17 22:25:11,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:11,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969665726] [2020-04-17 22:25:11,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:12,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969665726] [2020-04-17 22:25:12,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:12,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:12,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073539606] [2020-04-17 22:25:12,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:12,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:12,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:12,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:12,182 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-17 22:25:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:12,277 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-17 22:25:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:12,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 22:25:12,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:12,284 INFO L225 Difference]: With dead ends: 778 [2020-04-17 22:25:12,284 INFO L226 Difference]: Without dead ends: 634 [2020-04-17 22:25:12,286 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:12,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-17 22:25:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-17 22:25:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-17 22:25:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-17 22:25:12,324 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-17 22:25:12,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:12,324 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-17 22:25:12,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-17 22:25:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 22:25:12,332 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:12,332 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:12,333 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:12,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-04-17 22:25:12,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:12,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567815623] [2020-04-17 22:25:12,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:12,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567815623] [2020-04-17 22:25:12,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:12,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:25:12,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464695360] [2020-04-17 22:25:12,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:12,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:12,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:12,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:12,488 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-17 22:25:12,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:12,528 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-17 22:25:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:12,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 22:25:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:12,533 INFO L225 Difference]: With dead ends: 688 [2020-04-17 22:25:12,534 INFO L226 Difference]: Without dead ends: 580 [2020-04-17 22:25:12,534 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:12,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-17 22:25:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-17 22:25:12,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-17 22:25:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-17 22:25:12,558 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-17 22:25:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:12,558 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-17 22:25:12,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-17 22:25:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 22:25:12,560 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:12,560 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:12,561 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:12,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:12,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-17 22:25:12,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:12,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073918766] [2020-04-17 22:25:12,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:12,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073918766] [2020-04-17 22:25:12,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:12,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:12,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369209337] [2020-04-17 22:25:12,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:12,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:12,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:12,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:12,691 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-04-17 22:25:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:12,762 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-17 22:25:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:12,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 22:25:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:12,766 INFO L225 Difference]: With dead ends: 751 [2020-04-17 22:25:12,766 INFO L226 Difference]: Without dead ends: 358 [2020-04-17 22:25:12,766 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 22:25:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-17 22:25:12,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-17 22:25:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-17 22:25:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-17 22:25:12,780 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-17 22:25:12,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:12,780 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-17 22:25:12,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:12,781 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-17 22:25:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:25:12,782 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:12,782 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:12,782 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:12,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:12,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-17 22:25:12,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:12,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637078727] [2020-04-17 22:25:12,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:12,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637078727] [2020-04-17 22:25:12,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:12,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:12,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451963222] [2020-04-17 22:25:12,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:12,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:12,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:12,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:12,885 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-04-17 22:25:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:12,972 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-17 22:25:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:12,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-17 22:25:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:12,975 INFO L225 Difference]: With dead ends: 496 [2020-04-17 22:25:12,975 INFO L226 Difference]: Without dead ends: 262 [2020-04-17 22:25:12,975 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 22:25:12,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-17 22:25:12,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-17 22:25:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-17 22:25:12,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-17 22:25:12,985 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-17 22:25:12,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:12,986 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-17 22:25:12,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:12,987 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-17 22:25:12,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 22:25:12,987 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:12,988 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:12,988 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:12,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-17 22:25:12,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:12,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621628363] [2020-04-17 22:25:12,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:13,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621628363] [2020-04-17 22:25:13,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:13,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:25:13,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861494381] [2020-04-17 22:25:13,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:25:13,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:13,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:25:13,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:25:13,099 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-04-17 22:25:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:13,172 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-17 22:25:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:13,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-17 22:25:13,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:13,176 INFO L225 Difference]: With dead ends: 319 [2020-04-17 22:25:13,176 INFO L226 Difference]: Without dead ends: 238 [2020-04-17 22:25:13,177 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-17 22:25:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-17 22:25:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-17 22:25:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-17 22:25:13,188 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-17 22:25:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:13,188 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-17 22:25:13,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:25:13,189 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-17 22:25:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 22:25:13,190 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:13,190 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:13,190 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:13,191 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-17 22:25:13,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:13,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196550338] [2020-04-17 22:25:13,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:13,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196550338] [2020-04-17 22:25:13,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:13,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:13,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483985709] [2020-04-17 22:25:13,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:13,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:13,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:13,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:13,291 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-04-17 22:25:13,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:13,347 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-17 22:25:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:25:13,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-17 22:25:13,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:13,349 INFO L225 Difference]: With dead ends: 247 [2020-04-17 22:25:13,350 INFO L226 Difference]: Without dead ends: 182 [2020-04-17 22:25:13,351 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:13,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-17 22:25:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-17 22:25:13,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-17 22:25:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-17 22:25:13,357 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-17 22:25:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:13,358 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-17 22:25:13,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:13,358 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-17 22:25:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:25:13,359 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:13,359 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:13,359 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:13,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:13,360 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-17 22:25:13,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:13,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571696916] [2020-04-17 22:25:13,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:13,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571696916] [2020-04-17 22:25:13,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:13,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 22:25:13,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649877975] [2020-04-17 22:25:13,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:25:13,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:13,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:25:13,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:25:13,487 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-04-17 22:25:13,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:13,545 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-17 22:25:13,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:25:13,546 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-17 22:25:13,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:13,547 INFO L225 Difference]: With dead ends: 165 [2020-04-17 22:25:13,547 INFO L226 Difference]: Without dead ends: 132 [2020-04-17 22:25:13,548 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:13,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-17 22:25:13,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-17 22:25:13,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-17 22:25:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-17 22:25:13,552 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-17 22:25:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:13,552 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-17 22:25:13,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:25:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-17 22:25:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 22:25:13,554 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:13,554 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:13,554 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:13,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:13,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-17 22:25:13,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:13,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183653608] [2020-04-17 22:25:13,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:13,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183653608] [2020-04-17 22:25:13,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:13,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-17 22:25:13,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892848517] [2020-04-17 22:25:13,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-17 22:25:13,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:13,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-17 22:25:13,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:13,639 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-04-17 22:25:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:13,719 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-17 22:25:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-17 22:25:13,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-04-17 22:25:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:13,721 INFO L225 Difference]: With dead ends: 121 [2020-04-17 22:25:13,721 INFO L226 Difference]: Without dead ends: 112 [2020-04-17 22:25:13,722 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-04-17 22:25:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-17 22:25:13,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-17 22:25:13,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-17 22:25:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-17 22:25:13,727 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-17 22:25:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:13,727 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-17 22:25:13,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-17 22:25:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-17 22:25:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-17 22:25:13,728 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:13,728 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:13,729 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:13,729 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-17 22:25:13,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:13,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329470085] [2020-04-17 22:25:13,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:13,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329470085] [2020-04-17 22:25:13,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:13,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:13,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375019659] [2020-04-17 22:25:13,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:13,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:13,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:13,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:13,791 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-04-17 22:25:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:13,827 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-04-17 22:25:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:13,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-17 22:25:13,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:13,828 INFO L225 Difference]: With dead ends: 146 [2020-04-17 22:25:13,828 INFO L226 Difference]: Without dead ends: 52 [2020-04-17 22:25:13,828 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:13,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-17 22:25:13,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-17 22:25:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-17 22:25:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-17 22:25:13,831 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-04-17 22:25:13,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:13,831 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-17 22:25:13,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:13,831 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-17 22:25:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-17 22:25:13,832 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:25:13,832 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:25:13,832 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:25:13,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:25:13,833 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-04-17 22:25:13,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:25:13,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180450755] [2020-04-17 22:25:13,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:25:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:25:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:25:13,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180450755] [2020-04-17 22:25:13,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:25:13,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:25:13,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841181563] [2020-04-17 22:25:13,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:25:13,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:25:13,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:25:13,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:25:13,884 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-04-17 22:25:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:25:13,909 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-04-17 22:25:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:25:13,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-17 22:25:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:25:13,910 INFO L225 Difference]: With dead ends: 51 [2020-04-17 22:25:13,910 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:25:13,910 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:25:13,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:25:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:25:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:25:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:25:13,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-17 22:25:13,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:25:13,911 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:25:13,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:25:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:25:13,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:25:13,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:25:13 BasicIcfg [2020-04-17 22:25:13,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:25:13,918 INFO L168 Benchmark]: Toolchain (without parser) took 6120.28 ms. Allocated memory was 139.5 MB in the beginning and 278.4 MB in the end (delta: 138.9 MB). Free memory was 102.7 MB in the beginning and 175.2 MB in the end (delta: -72.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:13,918 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 22:25:13,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 793.32 ms. Allocated memory was 139.5 MB in the beginning and 207.6 MB in the end (delta: 68.2 MB). Free memory was 100.9 MB in the beginning and 161.9 MB in the end (delta: -60.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:13,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.44 ms. Allocated memory is still 207.6 MB. Free memory was 161.9 MB in the beginning and 158.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:13,921 INFO L168 Benchmark]: Boogie Preprocessor took 29.48 ms. Allocated memory is still 207.6 MB. Free memory was 158.9 MB in the beginning and 158.0 MB in the end (delta: 985.2 kB). Peak memory consumption was 985.2 kB. Max. memory is 7.1 GB. [2020-04-17 22:25:13,921 INFO L168 Benchmark]: RCFGBuilder took 556.61 ms. Allocated memory is still 207.6 MB. Free memory was 158.0 MB in the beginning and 133.4 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:13,922 INFO L168 Benchmark]: TraceAbstraction took 4660.94 ms. Allocated memory was 207.6 MB in the beginning and 278.4 MB in the end (delta: 70.8 MB). Free memory was 133.4 MB in the beginning and 175.2 MB in the end (delta: -41.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-04-17 22:25:13,926 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 139.5 MB. Free memory is still 122.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 793.32 ms. Allocated memory was 139.5 MB in the beginning and 207.6 MB in the end (delta: 68.2 MB). Free memory was 100.9 MB in the beginning and 161.9 MB in the end (delta: -60.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.44 ms. Allocated memory is still 207.6 MB. Free memory was 161.9 MB in the beginning and 158.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.48 ms. Allocated memory is still 207.6 MB. Free memory was 158.9 MB in the beginning and 158.0 MB in the end (delta: 985.2 kB). Peak memory consumption was 985.2 kB. Max. memory is 7.1 GB. * RCFGBuilder took 556.61 ms. Allocated memory is still 207.6 MB. Free memory was 158.0 MB in the beginning and 133.4 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4660.94 ms. Allocated memory was 207.6 MB in the beginning and 278.4 MB in the end (delta: 70.8 MB). Free memory was 133.4 MB in the beginning and 175.2 MB in the end (delta: -41.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 267 SDtfs, 328 SDslu, 473 SDs, 0 SdLazy, 205 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 7360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...